Place:Kōka ikki

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Short description: Military confederacy of ninja families


Kōka ikki

Kōka-gun Chūsō (甲賀郡中惣)  (Japanese)
c. 1460–1574
Ōmi Province with Kōka District labeled with the number 4
Ōmi Province with Kōka District labeled with the number 4
LocationKōka District
[ ⚑ ] : 34°58′N 136°10′E / 34.967°N 136.167°E / 34.967; 136.167
Largest cityKōka
Religion Shugendō
GovernmentFeudal military confederation • military-elder council
LegislatureGeneral Assembly of Kōka District (Kōka-gun Chūsō)
Establishmentc. 1460
History 
• Established
c. 1460
• Kōka and Iga units aid Rokkaku Takayori in defending against Ashikaga Yoshihisa
1487
• Subjugated by Oda Nobunaga
March 27 1574
• Participates in the second invasion of Iga ikki
1581
Today part ofJapan

The Kōka ikki or Kōka Confederacy, historically known as the Kōka-gun Chūsō, was a military confederation and network of ninja (then known as shinobi) in Kōka District (often spelled Kōga) in Southern Ōmi Province during the Sengoku period of Japan. Kōga-ryū, one of the two major traditions of ninjutsu that survived by fleeing to the mountains, is named after the confederacy and attributes its origins to it. After centuries of rivalry with Iga Province to the south, eventually the district worked closely in alliance with Iga. It also frequently allied with the Rokkaku clan that controlled the portions of Southern Ōmi province immediately to the north. While in Iga the ninja families essentially gained control of the entire province in a de facto republic, Ōmi province was too large, diverse, and strategically valuable for the families in Kōka to project their control over the entire area. The independence of the confederation ended with the subjugation of Kōka in 1574 to the Oda clan. After that conquest, Kōka ninjas served Tokugawa Ieyasu and then his descendants late into the Edo period.

History

Formation

In 15th and 16th-century Japan, Kōka, in Ōmi Province, had some 53 clans and adjacent Iga Province contained some 300–500 small estates.[2] Both regions were in anarchy, their estates and families constantly engaged in low-level, small-scale feuds and squabbles within and between each region.[2][3] This and the constant external threats posed by the incessant warfare of the period necessitated that the local jizamurai (lower-ranking military nobility) and their soldiers develop specialized espionage and combat skills.[2][4] The remoteness of the hill country in this part of Japan might also have encouraged the development of these skills.[5][6][7] The militant mountain-monks, yama-bushi, were also likely an influence as even the bandits in the area wore yellow scarfs that seem to have been copies of those worn by the mountain monks.[7] Reputedly, the units from these two regions often offered their services to nearby provinces as professionally trained, highly trained mercenaries.[6][8] However, political self-interest, including continued survival, could also have equally motivated the activities of Iga units in these provinces.[9] The usages of the term shinobi, specifically shinobi-mono, later known as ninjas, appearing in the late 1580s and early 1600s, referred to the soldiers from Iga and Kōka.[10] The anarchy of the period and, in the case of Iga, the remoteness of the territory encouraged autonomy, and the communities began organizing into ikki - "revolts" or "leagues".[6] While Iga was surrounded by mountains and thus difficult to access, Kōka was situated along a major road that during the Edo period became the famous Tōkaidō.[11] It thus bridged the isolation of Iga to the key communication lines of Ōmi.[11] Historical Kōka consisted of two large and several small valleys with rivers flowing down from the mountains which separated it from Iga. The two major rivers are the Yasugawa and the Somagawa.[12] At least 230 fortifications dotted the region.[13] The historian Stephen Turnbull wrote that Takigawa Castle, associated with the Ōhara family, is a typical arrangement of these forts. The main castle - kyojō - lies across from the Tendai temple Rakuyaji. Adjacent to it is the western castle - saijō - with another subsidiary castle - bunjō - across the valley. Each follows the mountain castle - yamashiro - design.[14]

Kōka-gun Chūsō

In 1487, the ninja from Iga and Kōka gained significant fame due to their actions at Magari.[15] Shogun Ashikaga Yoshihisa, concerned about the aggressive landgrabs by the Kōka shugo, Rokkaku Takayori, attacked Takayori. At Magari, Iga and Kōka ninja fought on the side of Takayori in exchange for Takayori recognizing their land ownership. The illness which prematurely killed Yoshihisa may have been at least hastened by, if not caused by wounds suffered during, the guerilla tactics and night attacks by the Iga and Kōka units.[16] The 53 ninja families in Kōka who participated in the conflict were recognized as the "Kōka 53", and 21 families were given special recognition from Takayori for their service.[16] The Mochizuki, descendants of the Kōka clan, were among the families which participated in the battle.[17] By the mid-1500s, the services of ninja from Iga and Kōka were in high demand, in use by at least 37 areas.[18] On December 15, 1541, the shogun in Kyoto sent a letter to Iga's governor requesting that the province assist Tsutsui Junshō in his siege of Kasagi Castle.[19] In the morning of December 23, 1541, 70–80 ninja agents from Iga and Kōka infiltrated the castle, set fire to the settlement, and were said to have captured the first and second baileys.[19] Two days later, the armies inside Kasagi sallied out and were defeated, after which the ninjas dispersed.[20]

According to the Bansenshūkai, an early Edo period document compiled in 1676 by a member of the Fujibayashi family, in 1558, Rokkaku Yoshikata was campaigning against a rebel retainer, Dodo, and besieged him in Sawayama Castle. After many days of unsuccessful siege, Yoshikata employed Tateoka Doshun from Iga to aid him. Doshun led a team of 44 Iga ninja and 4 Kōka ninja who carried lanterns Doshun had made with replicas of Dodo's mon (family crest). They entered the gates of the castle without opposition and then set fire to the castle. They escaped successfully and in the ensuing panic Yoshikata was able to capture the castle.[21] However, this account of the Rokkaku campaign against Dodo is full of errors, and accounts not derived from the Bansenshūkai do not mention ninja, let alone Tateoka Doshun, at all.[22] Dodo Oki-no-Kami Kuranosuke in actuality was a retainer of the Rokkaku's enemies, the Azai clan, and when Yoshikata invaded Northern Omi Province in 1559, Dodo was ordered by Azai Nagamasa to hold Sawayama.[23]

At some point between 1552 and 1568,[24] the Iga Republic drafted a constitution which included an outline for its alliance with Kōka.[25][26] Exactly how long the document was extent and how widely it applied is unknown.[24] 1565, Miyoshi Chokei and Matsunaga Hisahide launched an attack on the shogun Ashikaga Yoshiteru while he slept. Yoshiteru was mortally wounded and committed seppuku. His distant cousin, the infant Ashikaga Yoshihide, was denied investiture. Ashikaga Yoshiaki, Yoshiteru's brother who lived as a monk in Nara, was approached by Chokei and Hisahide to be Yoshiteru's successor, but instead Yoshiaki fled south to Kōka.[27] He took refuge under Wada Koremasa, a powerful lord among the Kōka families, and Koremasa either constructed or expanded a mansion for the shogun.[28] The shogun soon left for Yashima in Ōmi plead for help from Rokkaku Yoshikata. Yoshikata, not wanting conflict with the Miyoshi clan, rejected the proposal.[27] Asakura Yoshikage sheltered Yoshiaki but declined to restore him to power. Three years later, Oda Nobunaga pledged to support Yoshiaki, and among the escort sent to Echizen Province was Wada Koremasa. As a reward for his support, Koremasa was granted Akutagawa Castle in Settsu Province. With this, the Wada family's association with Kōka terminated.[29]

Conquest

Kōka soon came in conflict with this rising power of Oda Nobunaga. In 1568, Nobunaga marched to Kyoto to install Ashikaga Yoshiaki as shogun. The Rokkaku clan in southern Ōmi Province allied with the Miyoshi clan and backed Yoshiaki's nephew and rival, Ashikaga Yoshihide, that the Miyoshi had installed in Kyoto.[30] After Rokkaku Yoshikata and his sons were defeated during the invasion of Kannonji Castle, they fled first to Kōka and then Mount Kōya. From there they staged a guerrilla war against Nobunaga, assisted by the Iga and Kōka ninja forces.[31] The danger of harassment by this alliance made Nobunaga's control of southern Ōmi insecure, and in 1570 when Nobunaga retreated from the Siege of Kanegasaki back to Kyoto he was forced to go along the north-west shore of Lake Biwa rather than the more direct route through southern Ōmi.[32] Jizamurai from Iga and Kōka assisted Yoshikata and his sons in raids against Nobunaga, including setting fire to the village of Heso and the southern approaches of Moriyama.[32] On July 6, 1570, these alliance forces were moving down along the Yasugawa river when an army led by Shibata Katsuie and Sakuma Morimasa, generals for Nobunaga, intercepted them at the village of Ochikubo.[32] The alliance was defeated and 780 samurai from the Iga and Kōka ikkis were killed, along with the father and son Mikumo Takanose and Mikumo Mizuhara.[33] Stephen Turnbull estimates that 780 casualties must have been enormous for Iga and Kōka, since their armies likely were not very large, and indeed Shinchō Kōki makes no reference to that alliance for the next three years.[34] Around the same time, a monk named Sugitani Zenjūbō and who is presumed to have been a mercenary ninja assassin from either Iga or Kōka, ambushed Nobunaga, fired at him, but failed to successfully assassinate him. Turnbull states that Zenjūbō fired two shots at Nobunaga, both of which were absorbed by Nobunaga's armor.[34][35] Conversely, John Man cites an interview with a local resident in Kōka City who contends that the monk was from Kōka and attempted only one shot, which narrowly missed Nobunaga and passed through his right sleeve.[36] He was executed three years later.[34][35] In 1573, the shogun Yoshiaka attempted to thwart the power Nobunaga held over him and allied with the Rokkaku and the Kōka and Iga ikkis.[32] Yoshiaki began constructing a castle next to Lake Biwa. The castle was half-finished and the garrison, which included Kōka and Iga troops, was small when Nobunaga attacked. The defenders fled and begged for mercy, and Nobunaga immediately demolished the castle.[37] Later the same year, archers from Iga and Kōka assisted the Ikkō-ikki against Nobunaga as he retreated from the Second Siege of Nagashima.[38] Yoshiaki continued his resistance to Nobunaga but in late summer, 1573, he was defeated and forced to surrender.[34] The following year, Nobunaga defeated Rokkaku and the Kōka ikki. According to a document preserved by the Yamanaka family, on March 27, 1574, the remnants of the Kōka jizamurai surrendered to Nobunaga.[34] On May 3, Rokkaku Yoshikata, who had fled to Kōka, surrendered to Nobunaga.[34]

Existence as an Oda vassal

After forcing Kōka into submitting to be a vassal, Nobunaga destroyed the many small castles throughout the district and integrated the Kōka-shu, the military units that had composed the ikki, into his own armed forces.[39] In the second invasion of Iga in 1581, the Kōka-shu are mentioned among the soldiers comprising Nobunaga's invading armies. Thus, Kōka had now been forced to terminate the alliance that Iga had constitutionally bound itself into and instead oppose its southern neighbor.[39]

Service under the Tokugawa clan

After the destruction of the Iga Confederacy, the surviving Kōka and Iga families assisted Tokugawa Ieyasu, and after his establishment of the Tokugawa shogunate their services continued throughout the Edo period.[40][41][42] The final instance of combat involving ninja was the Shimabara Rebellion in 1630, after which the ninja mostly served as spies and bodyguards.[6] The last documented use of ninja in the shogunate was in 1853 when allegedly ninja were sent to investigate the arrival of the Perry Expedition.[6]

Government

In Kōka, the jizamurai organized in a similar ikki pattern to that in Iga, and the high-ranking families, although technically of peasant class, acted as the barons of the district.[14][43] Pierre Souyri argues that the inhabitants of Iga and Kōka formed these collectives not out of a commitment to a particular ideology but out of necessity. The defeated jizamurai who took refuge in the area trained the local inhabitants and together they desperately fought to maintain their social status and autonomy.[44] Some 53 clans in the district ruled as the elders of the confederation, meeting successively at three shrines, one of which was located on the outskirts of Kōka City.[45] The ruling class was called dōmyōchu or ichizoku shūdan, and they composed the Kōka-gun Chūsō (General Assembly of Kōka District ), the governing assembly and historical expression for the Kōka Confederacy.[46][47] Among the documented ruling families are the Ōhara, Hattori, Mochizuki, Ikeda, Ukai, Ichiyaku, Taki, Saji, Takamine, Ueno, Oki, Yamanaka, Ban, and Minobe.[1][47] Each of these families ruled over a sō, that is, federated districts of villages pledged to provide mutual aid and self-defense, roughly analogous to a European medieval commune.[47] These districts then sometimes were themselves part of higher level sō. For example, the Yamanaka, Ban, and Minobe families, who all lived in the vicinity of Kashigawi Shrine, each controlled a respective sō, named a dōmyō-sō because all the members of the respective district shared the same surname.[48] They then combined their individual sō into the Kashigawi sanbōsō (the Kashigawi three-member league). All these family sō linked together to form a district-wide sō that was the Kōka Confederacy.[47][48] The historian Pierre Souyri speculates that this high level of social organization allowed the jizamurai, who were of lower rank in society, to become particularly powerful in Kōka.[47] The lesser landholders composed the samurai-shū, among whom are the documented clans Tomita, Masuda, Shiotsu, Nishioka, Kitano, and Nakagami.[46] Below the district level, individual villages formed communes named sōson, which came to replace estates as the dominant source of power.[47]

The Wada family also were powerful, controlling a series of mountain castles along a river valley.[49] The most famous member of the clan, Wada Koremasa, controlled his small valley as if he were a daimyō.[1] He built at least seven fortifications: Wada Castle, five adjacent bunjō, each one of which was in sight of at least two others, and kubō yashiki, which was the mansion for Ashikaga Yoshiaki when he took refuge in Kōka after the assassination of his brother Ashikaga Yoshiteru in 1565.[1] After allying with Oda Nobunaga to restore Yoshiaki in 1568, Koremasa was granted land in Settsu Province the same year, and with that relocation ended the Wada association with Kōka.[29]

The Russian economist Vladimir V. Maltsev hypothesizes that the formation of a private and voluntary government allowed Iga and Kōka the stability to reap profits from its mercenary market while remaining effectively stateless.[50] In most of Japan after the Onin War, the loss of centralized power and the ensuing banditry, peasant uprisings, and feuds between and predatory taxation and raids by local daimyō resulted in insecure property rights, thin markets, and greatly weakened provision of public goods.[51] In Iga and Kōka, this economic situation offered a lucrative mercenary market.[52] Conventionally in economics, a formal state is deemed necessary to protect complex trade arrangements.[53] However, Maltsev hypothesizes that in the chaotic and violent environment of the Sengoku period, state formation was cost-prohibitive and potentially hazardous to Iga.[54] Instead, the model of private government practiced by various ikki was much more attractive, whose voluntary nature of the confederacy resulted in a competitive Tiebout model of government.[55]

Religion

The religion in the district was Shugendō, a syncretism of Buddhism and Shinto, particularly Tendai and Shingon.[7][14][46] In the hill country, militant mountain-monks dedicated themselves to asceticism and esoteric practice.[7] Members of the samurai-shū are mentioned in a 1475 document of donations to Aburahi Daimyōjin, the patron deity of Kōka, and the Kōka-gun are named in a 1571 records relating to the mediation of a dispute between the Handōji, the main Shugendō temple in Kōka, and the Shingu and Yagawa Shrines.[46] Takigawa Castle, of the Ōhara clan, lay across from the Tendai temple Rakuyaji.[14]

Citations

  1. ↑ 1.0 1.1 1.2 1.3 Turnbull 2017, p. 83
  2. ↑ 2.0 2.1 2.2 Man 2012, pp. 122–123, 173
  3. ↑ Maltsev 2022, p. 433
  4. ↑ Turnbull 2017, pp. 78–79
  5. ↑ Barducci & Orbach 2020, p. 1007
  6. ↑ 6.0 6.1 6.2 6.3 6.4 Yamada, Yuji (November 2014), "A History of Shinobi（忍び）", The Truth about Ninja: A comparison of the historical 忍び（Shinobi）and 忍者（Ninja）as a cultural phenomenon (London, Alicante, Valencia, Barcelona, Madrid and Rome: Mie University and Japan Foundation): pp. 2, https://www.human.mie-u.ac.jp/kenkyu/ken-prj/iga/news/%E8%8B%B1%E8%AA%9E.pdf 
  7. ↑ 7.0 7.1 7.2 7.3 Souyri 2010, p. 119
  8. ↑ Deal, William E. (2007). Handbook to Life in Medieval and Early Modern Japan. Oxford University Press. p. 165. ISBN 978-0-19-533126-4. 
  9. ↑ Turnbull 2014, p. 15; Turnbull 2017, pp. 78, 80
  10. ↑ Barducci & Orbach 2020, p. 999
  11. ↑ 11.0 11.1 Turnbull 2017, p. 81
  12. ↑ Turnbull 2017, pp. 81–82
  13. ↑ Souyri 2001, p. 190
  14. ↑ 14.0 14.1 14.2 14.3 Turnbull 2017, p. 82
  15. ↑ Hurst III, G. Cameron (2001). "Ninjutsu". in Green, Thomas A. (in en). Martial Arts of the World: An Encyclopedia. 1: A-Q. Santa Barbara, California: ABC-CLIO. p. 356. ISBN 978-1-57607-150-2. https://books.google.com/books?id=v32oHSE5t6cC&pg=PA356. 
  16. ↑ 16.0 16.1 Turnbull 2017, p. 84; Cummins 2012, pp. 31–32; Mie University 2017, pp. 31–33; Turnbull 2014, pp. 15–16
  17. ↑ Mie University 2017, p. 82
  18. ↑ Man 2012, p. 182
  19. ↑ 19.0 19.1 Turnbull 2017, p. 66
  20. ↑ Turnbull 2017, pp. 66–67
  21. ↑ Turnbull 2003, p. 43; Turnbull 2007, pp. 185–186
  22. ↑ Turnbull 2017, pp. 155–156
  23. ↑ Turnbull 2017, p. 156
  24. ↑ 24.0 24.1 Man 2012, pp. 126–128
  25. ↑ Maltsev 2022, pp. 439–440
  26. ↑ Barducci & Orbach 2020, p. 1008
  27. ↑ 27.0 27.1 Turnbull 2017, p. 85
  28. ↑ Turnbull 2017, pp. 83, 85
  29. ↑ 29.0 29.1 Turnbull 2017, p. 86
  30. ↑ Turnbull 2017, p. 87
  31. ↑ Turnbull 2017, pp. 87–88
  32. ↑ 32.0 32.1 32.2 32.3 Turnbull 2017, p. 88
  33. ↑ Turnbull 2017, pp. 78, 88–89
  34. ↑ 34.0 34.1 34.2 34.3 34.4 34.5 Turnbull 2017, p. 89
  35. ↑ 35.0 35.1 Turnbull 2007, pp. 189–190
  36. ↑ Man 2012, pp. 107–108
  37. ↑ Turnbull 2017, pp. 88–89
  38. ↑ Turnbull 2017, pp. 77, 89
  39. ↑ 39.0 39.1 Turnbull 2017, p. 90
  40. ↑ Yamada, Yuji (November 2014), "A History of Shinobi（忍び）", The Truth about Ninja: A comparison of the historical 忍び（Shinobi）and 忍者（Ninja）as a cultural phenomenon (London, Alicante, Valencia, Barcelona, Madrid and Rome: Mie University and Japan Foundation): pp. 2, https://www.human.mie-u.ac.jp/kenkyu/ken-prj/iga/news/%E8%8B%B1%E8%AA%9E.pdf 
  41. ↑ Maltsev 2022, p. 440
  42. ↑ Toshinobu, Watanabe (2015). "Lecture No.2: The Activities of Koka-mono at "Shinkun Koka-Iga Goe" (1st term)". Conference with the Cooperation of Iga on Ninja Culture. Mie University. https://www.human.mie-u.ac.jp/en/projects/iga/lecture/2015/2015-2.html. ; Tatsuo, Fujita (2015). "Lecture No.1: Fact about "Shinkun Iga Goe" (1st Term)". Conference with the Cooperation of Iga on Ninja Culture. Mie University. https://www.human.mie-u.ac.jp/en/projects/iga/lecture/2015/2015-1.html. 
  43. ↑ Keiji 1988, p. 336, note 59
  44. ↑ Souyri 2010, p. 120
  45. ↑ Man 2012, pp. 89–90, 97–98, 131
  46. ↑ 46.0 46.1 46.2 46.3 Turnbull 2017, pp. 82–83
  47. ↑ 47.0 47.1 47.2 47.3 47.4 47.5 Souyri 2010, p. 116
  48. ↑ 48.0 48.1 Keiji 1988, p. 336
  49. ↑ Turnbull 2007, p. 169
  50. ↑ Maltsev 2022, pp. 433–441
  51. ↑ Maltsev 2022, p. 434
  52. ↑ Maltsev 2022, pp. 434–435
  53. ↑ Maltsev 2022, p. 345
  54. ↑ Maltsev 2022, p. 437
  55. ↑ Maltsev 2022, p. 439

References



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